Question

Complete and balance the following chemical equations :
(i) Al2O3 + HCl
(ii)  K2O + H2O
(iii)  Fe + H2O ​

Answer 1

Answer:

HOPE THIS HELPS YOU BUDDY

Answer 2

Answer:

$(i) Al_2O_3 + HCl-- > AlCl_3+H_2O\\(ii) K_2O + H_2O-- > 2KOH\\(iii) 3Fe + 4H_2O-- > Fe_3O_4+4H_2$

Explanation:

$(i) Al_2O_3 + HCl-- > AlCl_3+H_2O\\(ii) K_2O + H_2O-- > 2KOH\\(iii) 3Fe + 4H_2O-- > Fe_3O_4+4H_2$

Balancing chemical equations involves adding stoichiometric coefficients to reactants and products. This is important because a chemical equation must obey the law of conservation of mass and the law of constant proportions, i.e. the same number of atoms of each element must exist on the reactant and product sides of the equation.

Related Terminology

Chemical equation

A chemical equation is a symbolic representation of a chemical reaction in which the reactants and products are labeled by their respective chemical formulas.

An example of a chemical equation is 2H2 + O2 → 2H2O, which describes the reaction between hydrogen and oxygen to form water.

The reactant side is the part of the chemical equation to the left of the “→” symbol, while the product side is the part to the right of the arrow symbol.

What is most important about balancing chemical equations?

The most important thing in balancing chemical equations is to satisfy the law of conservation of mass.

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